CN116427208B - Processing technology of high-strength wear-resistant bobbin base paper - Google Patents

Processing technology of high-strength wear-resistant bobbin base paper Download PDF

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Publication number
CN116427208B
CN116427208B CN202310283836.6A CN202310283836A CN116427208B CN 116427208 B CN116427208 B CN 116427208B CN 202310283836 A CN202310283836 A CN 202310283836A CN 116427208 B CN116427208 B CN 116427208B
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China
Prior art keywords
base paper
bobbin base
distilled water
paper
stirring
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CN202310283836.6A
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CN116427208A (en
Inventor
葛勇
周心语
许继威
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Jiangsu Maosen Paper Co ltd
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Jiangsu Maosen Paper Co ltd
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/04—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polycarbonamides, polyesteramides or polyimides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/02—Polyamines
    • C08G73/028—Polyamidoamines
    • C08G73/0286—Preparatory process from polyamidoamines and epihalohydrins
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14—Secondary fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • D21H17/72—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic material
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)

Abstract

The invention discloses a processing technology of high-strength wear-resistant bobbin base paper, in particular to the technical field of bobbin base paper, which comprises the following raw materials: ethanol, N-methylimidazole, 1-chlorobutane, nitrogen, distilled water, crushed waste paper, diethylenetriamine, adipic acid, epoxy chloropropane, an emulsifier, an initiator, acrylic acid, styrene and oxidized starch. The modified polyamide polyamine reinforcing agent is added into the bobbin base paper through the slurry, so that the bonding strength among paper fibers can be improved to improve the strength of the bobbin base paper, the ionic liquid is acted on the paper fibers, lignin and polysaccharide deposited and sucked back on the fiber surfaces and in micropores are extracted, the degree of swelling of the fibers is increased, the whiteness is improved, the consumption of a chemical bleaching agent is reduced, the damage to the fibers is small, the hydrogen bonds in the fibers can be broken by adopting the ionic liquid treatment, the cohesive force of the fibers is reduced, the swelling fibers are softened, and the high-strength wear resistance of the bobbin base paper can be improved.

Description

Processing technology of high-strength wear-resistant bobbin base paper
Technical Field
The invention relates to the technical field of bobbin body paper, in particular to a processing technology of high-strength wear-resistant bobbin body paper.
Background
The bobbin paper is mainly applied to manufacturing of inner cores and pipelines, industrial pipes, mulch films, firework tubes, textile pipes, spiral pipes, pagoda tubes, parallel pipes, various paper corner protectors, cartons, honeycomb paperboards and the like.
The production process of the bobbin paper comprises the following steps of cutting waste paper, uniformly stirring water and the cut paper to obtain waste pulp slag, obtaining refined paper pulp, filtering, bleaching, pulping to obtain qualified paper pulp, making paper pulp by using a sheet making machine, extruding the water content of the paper pulp, pressing, and drying by steam to obtain the bobbin base paper. The pulping equipment performs extrusion, impact, friction, kneading and other actions on the paper pulp, so that the fiber bundles formed by bonding a plurality of fibers together are dispersed into single fibers. The fiber in the paper pulp lacks necessary flexibility, the connection performance between the fiber and the fiber is poor, if the paper is made by using the paper pulp, the paper is loose, porous, rough in surface and low in strength, the use requirement cannot be met, and the pulping treatment can enable the paper sheet to obtain good forming, and the uniformity and strength of the paper sheet are improved.
The existing bobbin body paper cannot meet the use demands of people, waste paper is recycled for many times, the strength of the bobbin body paper is directly reduced, the cohesive force of fibers in paper pulp is overlarge, the strength of the paper pulp is low, and the paper pulp is easy to wear.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a processing technology of high-strength wear-resistant bobbin base paper, and the problems to be solved by the invention are as follows: how to improve the strength and wear resistance of the bobbin base paper.
In a preferred embodiment: the high-strength wear-resistant bobbin base paper comprises the following raw materials in parts by weight: 0.03-0.05 part of ethanol, 0.01-0.03 part of N-methylimidazole, 0.02-0.06 part of 1-chlorobutane, 0.1-0.3 part of nitrogen, 50-60 parts of distilled water, 60-70 parts of crushed waste paper, 0.01-0.04 part of diethylenetriamine, 0.005-0.3 part of adipic acid, 0.02-0.08 part of epichlorohydrin, 0.001-0.004 part of emulsifier, 0.001-0.004 part of initiator, 0.02-0.06 part of acrylic acid, 0.01-0.4 part of styrene and 0.05-1 part of oxidized starch.
In a preferred embodiment: the material comprises the following raw materials in parts by weight: 0.01-0.07 part of ethanol, 0.005-0.06 part of N-methylimidazole, 0.01-0.08 part of 1-chlorobutane, 0.05-0.5 part of nitrogen, 40-70 parts of distilled water, 50-80 parts of crushed waste paper, 0.006-0.07 part of diethylenetriamine, 0.001-0.5 part of adipic acid, 0.01-0.1 part of epichlorohydrin, 0.001-0.006 part of emulsifying agent, 0.001-0.006 part of initiator, 0.01-0.1 part of acrylic acid, 0.008-0.7 part of styrene and 0.01-1.8 part of oxidized starch.
In a preferred embodiment: the material comprises the following raw materials in parts by weight: 0.05-0.04 part of ethanol, 0.015-0.02 part of N-methylimidazole, 0.016-0.05 part of 1-chlorobutane, 0.06-0.2 part of nitrogen, 52-59 parts of distilled water, 62-69 parts of crushed waste paper, 0.02-0.03 part of diethylenetriamine, 0.006-0.2 part of adipic acid, 0.03-0.07 part of epichlorohydrin, 0.002-0.003 part of emulsifier, 0.002-0.003 part of initiator, 0.03-0.05 part of acrylic acid, 0.02-0.3 part of styrene and 0.06-0.5 part of oxidized starch.
In a preferred embodiment: the emulsifier is prepared by compounding OP-10 and Span-80 according to the ratio of 1:1.
The invention also provides a processing technology of the high-strength wear-resistant bobbin base paper, which comprises the following specific preparation steps:
step one: preparing an ionic liquid, namely weighing ethanol, N-methylimidazole and 1-chlorobutane, putting the ethanol, the N-methylimidazole and the 1-chlorobutane into a reactor, uniformly stirring, heating to 70-80 ℃, introducing nitrogen, reacting for 22-24 hours to obtain a light colorless transparent layered liquid, cooling to-18-23 ℃, standing for 10-12 hours, separating out an upper liquid, drying a mixture in the reactor to obtain the ionic liquid, adding the ionic liquid and crushed waste paper into a processing pool, heating to 100-110 ℃ after uniform mixing, stirring for 1-1.5 hours, adding distilled water, stopping the reaction of the ionic liquid and the dried crushed waste paper, recovering the ionic liquid, and fully washing away the ionic liquid on the surface of the crushed waste paper;
step two: preparing polyamide polyamine epichlorohydrin, weighing diethylenetriamine, distilled water and distilled water, adding into a stirrer with a condenser pipe, stirring uniformly, adding adipic acid, heating the solution to enable moisture to slip out at about 130-140 ℃, continuing heating after moisture slips out, preserving heat for 2.5-3h, cooling to 160-140 ℃, adding a certain amount of distilled water at 90-100 ℃, cooling to 20-24 ℃ to obtain polyamide polyamine, slowly dripping epichlorohydrin while stirring for 14-17min, weighing distilled water, adding, preserving heat at 150-170 ℃ for 6-12h, enabling the jelly, adjusting the pH of the added hydrochloric acid to be acidic, and stopping the reaction to obtain the polyamide polyamine epichlorohydrin;
step three: preparing a modified polyamide polyamine reinforcing agent, namely weighing polyamide polyamine epichlorohydrin and distilled water, adding the mixture into a reaction kettle, stirring, adjusting the pH value of the solution, heating to 60-70 ℃, introducing nitrogen, adding an emulsifying agent, stirring for 30-40min, weighing an initiator and acrylic acid, adding the initiator and acrylic acid into the reaction kettle, stirring for 30-40min, dropwise adding styrene, reducing the stirring speed after dropwise adding, preserving heat for 4h to obtain the modified polyamide polyamine reinforcing agent, adding the waste paper and distilled water after washing in the step one into a beater, beating to obtain refined pulp, weighing the modified polyamide polyamine reinforcing agent, adding the refined pulp, and stirring for 5-10min;
step four: and (3) manufacturing paper by using a sheet machine, extruding pulp water, pressing, forming, drying by steam to obtain a semi-finished bobbin base paper, weighing oxidized starch and distilled water, uniformly stirring, heating to 60-95 ℃ for heat preservation, stopping heating after heat preservation for 20-30min, cooling to 21-26 ℃ while stirring to obtain a starch glue solution, mixing the starch glue solution with the modified polyamide polyamine obtained in the step (III) to obtain a mixed glue solution, uniformly coating the mixed glue solution on the surface of the semi-finished bobbin base paper, finishing surface sizing, and airing to obtain the bobbin base paper.
In a preferred embodiment: in the third step, naoH is added to adjust the pH value of the solution to 9.5-10.
In a preferred embodiment: and step three, in the process of dropwise adding the styrene, the dropwise adding time is 25-40min.
In a preferred embodiment: the beating degree of the refined pulp obtained in the step three is 40-45 DEG SR.
In a preferred embodiment: and in the first step, the mixture in the reactor is dried under the condition of 70-75 ℃ vacuum environment for 22-24 hours.
When distilled water is added in the first step, the ratio of the distilled water to the mixed solution is 2:1.
the invention has the technical effects and advantages that:
the modified polyamide polyamine reinforcing agent and oxidized starch are compounded and then used for surface sizing of the bobbin base paper, and a layer of film is formed on two sides of the bobbin base paper after sizing, and endows the bobbin base paper with a sandwich structure, so that the rigidity of the bobbin base paper is improved, the stiffness, the ring pressure intensity and the like of the bobbin base paper are improved, the binding force between fibers can be promoted by the obtained polyamide polyamine epichlorohydrin, the rigidity of paper sheets can be increased by the styrene, the elastic modulus is increased, and the high-strength wear resistance of the bobbin base paper can be improved.
The bobbin base paper prepared by the raw material formula of the invention acts the ionic liquid on paper fibers, thereby separating lignin and polysaccharide deposited back on the surfaces and in micropores of the fibers to be extracted, increasing the swelling degree of the fibers, obviously improving the bleaching performance of subsequent chemical pulp by the change of the fiber characteristics, improving whiteness, reducing the consumption of chemical bleaching agents and causing little damage to the fibers, damaging hydrogen bonds in the fibers by adopting the ionic liquid treatment, reducing the cohesive force of the fibers, softening the swelling fibers and playing the role of 'chemical pulping', thereby reducing the energy consumption of subsequent pulping, reducing the cutting of the fibers and improving the quality of finished paper.
Description of the embodiments
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
The invention provides high-strength wear-resistant bobbin base paper which comprises the following raw materials in parts by weight: 0.03 part of ethanol, 0.01 part of N-methylimidazole, 0.02 part of 1-chlorobutane, 0.1 part of nitrogen, 50 parts of distilled water, 60 parts of waste paper, 0.01 part of diethylenetriamine, 0.005 part of adipic acid, 0.02 part of epichlorohydrin, 0.001 part of an emulsifying agent, 0.001 part of an initiating agent, 0.02 part of acrylic acid, 0.01 part of styrene and 0.05 part of oxidized starch.
The emulsifier is prepared by compounding OP-10 and Span-80 according to the ratio of 1:1.
The invention also provides a processing technology of the high-strength wear-resistant bobbin base paper, which comprises the following specific preparation steps:
step one: preparing an ionic liquid, namely weighing ethanol, N-methylimidazole and 1-chlorobutane, putting the ethanol, the N-methylimidazole and the 1-chlorobutane into a reactor, uniformly stirring, heating to 70 ℃, introducing nitrogen, reacting for 22 hours to obtain a pale colorless transparent layered liquid, cooling to-18 ℃, standing for 10 hours, separating an upper liquid, drying a mixture in the reactor to obtain the ionic liquid, adding the ionic liquid and crushed waste paper into a processing pool, uniformly mixing, heating to 100 ℃, stirring for 1 hour, adding distilled water, stopping the reaction of the ionic liquid and the dried crushed waste paper, recovering the ionic liquid, and fully washing the ionic liquid on the surface of the crushed waste paper;
step two: preparing polyamide polyamine epichlorohydrin, taking diethylenetriamine, distilled water and distilled water, adding into a stirrer with a condenser pipe, stirring uniformly, adding adipic acid, heating the solution to enable water to slip out at about 130 ℃, continuing heating after water slips out, preserving heat for 2.5 hours, cooling to 160 ℃, adding a certain amount of distilled water at 90 ℃, cooling to 20 ℃ to obtain polyamide polyamine, slowly dripping epichlorohydrin while stirring, dripping for 14 minutes, weighing distilled water, preserving heat, keeping the temperature at 150 ℃ for 6 hours, enabling the jelly, and adjusting the pH of the added hydrochloric acid to be acidic to stop the reaction to obtain the polyamide polyamine epichlorohydrin;
step three: preparing a modified polyamide polyamine reinforcing agent, namely weighing polyamide polyamine epichlorohydrin and distilled water, adding the mixture into a reaction kettle, stirring, adjusting the pH value of the solution, heating to 60 ℃, adding nitrogen, adding an emulsifying agent, stirring for 30min, weighing an initiating agent and acrylic acid, adding the initiating agent and acrylic acid into the reaction kettle, stirring for 30min, dropwise adding styrene, reducing the stirring speed after dropwise adding, preserving heat for 4h to obtain the modified polyamide polyamine reinforcing agent, adding the waste paper and distilled water cleaned in the step one into a beater, pulping to obtain refined paper pulp, weighing the modified polyamide polyamine reinforcing agent, adding the refined paper pulp, and stirring for 5min;
step four: and (3) manufacturing paper with a sheet machine, extruding pulp water, pressing, forming, drying by steam to obtain a semi-finished bobbin base paper, weighing oxidized starch and distilled water, uniformly stirring, heating to 60 ℃ for heat preservation, stopping heating after heat preservation for 20min, cooling to 21 ℃ while stirring to obtain starch glue solution, mixing the starch glue solution with the modified polyamide polyamine obtained in the step (III) to obtain a mixed glue solution, uniformly coating the mixed glue solution on the surface of the semi-finished bobbin base paper, finishing surface sizing, and airing to obtain the bobbin base paper.
In a preferred embodiment: in the third step, naoH is added to adjust the pH value of the solution to 9.5.
In a preferred embodiment: and step three, in the process of dropwise adding the styrene, the dropwise adding time is 25min.
In a preferred embodiment: the freeness of the refined pulp obtained in the third step is 40 DEG SR.
In a preferred embodiment: the drying condition of the mixture in the reactor in the first step is that the mixture is dried for 22 hours in a vacuum environment at 70 ℃.
When distilled water is added in the first step, the ratio of the distilled water to the mixed solution is 2:1.
examples
Unlike example 1, the present invention provides a high-strength abrasion-resistant bobbin base paper comprising 0.05 part of ethanol, 0.03 part of N-methylimidazole, 0.06 part of 1-chlorobutane, 0.3 part of nitrogen, 60 parts of distilled water, 70 parts of scrap paper, 0.04 part of diethylenetriamine, 0.3 part of adipic acid, 0.08 part of epichlorohydrin, 0.004 part of emulsifier, 0.004 part of initiator, 0.06 part of acrylic acid, 0.4 part of styrene and 1 part of oxidized starch.
Examples
Unlike examples 1-2, the present invention provides a high strength abrasion resistant bobbin base paper comprising 0.055 parts of ethanol, 0.018 parts of N-methylimidazole, 0.02 parts of 1-chlorobutane, 0.1 parts of nitrogen, 58 parts of distilled water, 68 parts of scrap paper, 0.025 parts of diethylenetriamine, 0.08 parts of adipic acid, 0.05 parts of epichlorohydrin, 0.0025 parts of an emulsifier, 0.0025 parts of an initiator, 0.04 parts of acrylic acid, 0.025 parts of styrene and 0.065 parts of oxidized starch.
Examples
The invention provides bobbin base paper which comprises 0.03 part of ethanol, 0.01 part of N-methylimidazole, 0.02 part of 1-chlorobutane, 0.1 part of nitrogen, 50 parts of distilled water, 60 parts of crushed waste paper and 0.05 part of oxidized starch.
The invention also provides a processing technology of the base paper, which comprises the following specific preparation steps:
step one: preparing an ionic liquid, namely weighing ethanol, N-methylimidazole and 1-chlorobutane, putting the ethanol, the N-methylimidazole and the 1-chlorobutane into a reactor, uniformly stirring, heating to 70 ℃, introducing nitrogen, reacting for 22 hours to obtain a pale colorless transparent layered liquid, cooling to-18 ℃, standing for 10 hours, separating an upper liquid, drying a mixture in the reactor to obtain the ionic liquid, adding the ionic liquid and crushed waste paper into a processing pool, uniformly mixing, heating to 100 ℃, stirring for 1 hour, adding distilled water, stopping the reaction of the ionic liquid and the dried crushed waste paper, recovering the ionic liquid, and fully washing the ionic liquid on the surface of the crushed waste paper;
step two: and (3) manufacturing paper by using a sheet machine, extruding pulp water, pressing, forming, drying by steam to obtain semi-finished bobbin base paper, weighing oxidized starch and distilled water, uniformly stirring, heating to 60 ℃ after dissolving, preserving heat for 20min, stopping heating, cooling to 21 ℃ while stirring to obtain starch glue solution, uniformly coating the starch glue solution on the surface of the semi-finished bobbin base paper, finishing surface sizing, and airing to obtain the bobbin base paper.
In a preferred embodiment: the drying condition of the mixture in the reactor in the first step is that the mixture is dried for 22 hours in a vacuum environment at 70 ℃.
When distilled water is added in the first step, the ratio of the distilled water to the mixed solution is 2:1.
examples
The processing technology of the bobbin base paper comprises 50 parts of distilled water, 60 parts of waste paper, 0.01 part of diethylenetriamine, 0.005 part of adipic acid, 0.02 part of epichlorohydrin, 0.001 part of emulsifier, 0.001 part of initiator, 0.02 part of acrylic acid, 0.01 part of styrene and 0.05 part of oxidized starch.
The emulsifier is prepared by compounding OP-10 and Span-80 according to the ratio of 1:1.
The invention also provides a processing technology of the bobbin base paper, which comprises the following specific preparation steps:
step one: preparing polyamide polyamine epichlorohydrin, taking diethylenetriamine, distilled water and distilled water, adding into a stirrer with a condenser pipe, stirring uniformly, adding adipic acid, heating the solution to enable water to slip out at about 130 ℃, continuing heating after water slips out, preserving heat for 2.5 hours, cooling to 160 ℃, adding a certain amount of distilled water at 90 ℃, cooling to 20 ℃ to obtain polyamide polyamine, slowly dripping epichlorohydrin while stirring, dripping for 14 minutes, weighing distilled water, preserving heat, keeping the temperature at 150 ℃ for 6 hours, enabling the jelly, and adjusting the pH of the added hydrochloric acid to be acidic to stop the reaction to obtain the polyamide polyamine epichlorohydrin;
step two: preparing a modified polyamide polyamine reinforcing agent, namely weighing polyamide polyamine epichlorohydrin and distilled water, adding the mixture into a reaction kettle, stirring, adjusting the pH value of the solution, heating to 60 ℃, adding nitrogen, adding an emulsifying agent, stirring for 30min, weighing an initiating agent and acrylic acid, adding the mixture into the reaction kettle, stirring for 30min, dripping styrene, reducing the stirring speed after dripping, preserving heat for 4h to obtain the modified polyamide polyamine reinforcing agent, adding crushed waste paper and distilled water into a beater, pulping to obtain refined paper pulp, weighing the modified polyamide polyamine reinforcing agent, adding the refined paper pulp, and stirring for 5min;
step three: and (3) manufacturing paper with a sheet machine, extruding pulp water, pressing, forming, drying by steam to obtain a semi-finished bobbin base paper, weighing oxidized starch and distilled water, uniformly stirring, heating to 60 ℃ for heat preservation, stopping heating after heat preservation for 20min, cooling to 21 ℃ while stirring to obtain starch glue solution, mixing the starch glue solution with the modified polyamide polyamine obtained in the step (II) to obtain a mixed glue solution, uniformly coating the mixed glue solution on the surface of the semi-finished bobbin base paper, finishing surface sizing, and airing to obtain the bobbin base paper.
In a preferred embodiment: in the second step, naoH is added to adjust the pH value of the solution to 9.5.
In a preferred embodiment: and in the second step, in the process of dropwise adding the styrene, the dropwise adding time is 25min.
In a preferred embodiment: the beating degree of the refined pulp obtained in the second step is 40 DEG SR.
Comparative example:
the invention provides bobbin base paper, which comprises 50 parts of distilled water, 60 parts of broken waste paper and 0.05 part of oxidized starch.
The invention also provides a processing technology of the tube base paper, which comprises the following specific preparation steps:
adding crushed waste paper and distilled water into a beater, pulping to obtain refined paper pulp, making paper pulp by using a sheet making machine, extruding paper pulp water, pressing, drying by steam to obtain semi-finished bobbin base paper, weighing oxidized starch and distilled water, uniformly stirring, heating to 60 ℃ for heat preservation, stopping heating after heat preservation for 20min, cooling to 21 ℃ while stirring to obtain starch glue solution, uniformly coating the starch glue solution on the surface of the semi-finished bobbin base paper, finishing surface sizing, and airing to obtain the bobbin base paper.
The sources of the raw materials in the above examples and comparative examples are: ethanol is 793175-5GA, N-methylimidazole is M50834-500G, 1-chlorobutane is 8016400100, distilled water is self-made, crushed waste paper is self-made, diethylenetriamine is D93856-1L, epichlorohydrin is Siemens Aldrich (Shanghai) trade company, which is 8032960100, adipic acid is S30144-500g, emulsifier is OP-10 and Shanxi ocean pharmaceutical excipients are Span-80, initiator is 1, initiator is water-soluble V50, acrylic acid is R5635-75, and starch is R9672-96.
Taking the bobbin base papers prepared in the above examples 1-5 as an experimental group 1, an experimental group 2, an experimental group 3, an experimental group 4 and an experimental group 5, respectively, selecting the bobbin base papers produced in the comparative examples as a control group, performing stiffness, tightness, tensile index, ring crush index and burst index tests on the selected bobbin base papers, (analyzing and recording according to fiber degradation analysis, scanning electron microscope, XRD spectrogram of pulp fiber, and detection data of X-ray diffraction), measuring tensile strength of paper and paperboard according to GB/T12914-1991, measuring ring crush strength according to national standard GB/T2679.8-1995, and measuring the results as shown in Table I:
whiteness/%ISO Opacity/% Tensile index/N.m/g Ring pressure index/N.m/g Burst index/kPa.m 2 /g
Experiment group 1 78 94 38 67 146
Experiment group 2 75 93 36 65 140
Experiment group 3 64 91 35 65.5 142
Experiment group 4 56 92 32 50 110
Experiment group 5 45 88 34 55 130
Control group 40 74 25 40 90
List one
As is clear from the table one, the bobbin stock produced by the invention has good high-strength wear-resistant performance, compared with the comparative example 1, the example 4 has no diethylenetriamine, adipic acid, epichlorohydrin, emulsifying agent, initiator, acrylic acid and styrene, the stiffness, strength and wear-resistant effect are reduced, the comparative example 1 has no ethanol N-methylimidazole, 1-chlorobutane, nitrogen, distilled water and waste paper, the degree of fiber swelling is small, the whiteness is reduced, the combination strength among paper fibers can be improved by adding the modified polyamide polyamine reinforcing agent into the bobbin stock through pulp, the strength of the bobbin stock can be improved, the modified polyamide polyamine reinforcing agent and oxidized starch are compounded and then used for surface sizing of the bobbin stock, and a layer of film is formed on two sides of the bobbin stock after sizing, the film gives the bobbin base paper a sandwich structure, the structure increases the rigidity of the bobbin base paper, thereby improving the stiffness, ring pressure intensity and the like of the bobbin base paper, the obtained polyamide polyamine epichlorohydrin can promote the bonding force between fibers, the styrene can increase the rigidity of paper sheets, the elastic modulus is increased, the stiffness is further increased, the high-strength wear resistance of the bobbin base paper can be improved, the ionic liquid is acted in paper fibers, lignin and glycan deposited back in fiber surfaces and micropores are extracted, the degree of fiber swelling is increased, the change of the fiber characteristics can obviously improve the bleaching performance of subsequent chemical pulp, thereby improving the whiteness, reducing the consumption of chemical bleaching agents, reducing the fiber damage, destroying the hydrogen bonds in the fibers, reducing the cohesive force of the fibers, softening swelling fibers and playing the role of chemical pulping, thereby reducing the energy consumption of subsequent pulping, reducing fiber cutting and improving the quality of finished paper.
Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (9)

1. High strength wear-resisting spool body paper, its characterized in that: the material comprises the following raw materials in parts by weight: 0.03-0.05 part of ethanol, 0.01-0.03 part of N-methylimidazole, 0.02-0.06 part of 1-chlorobutane, 0.1-0.3 part of nitrogen, 50-60 parts of distilled water, 60-70 parts of crushed waste paper, 0.01-0.04 part of diethylenetriamine, 0.005-0.3 part of adipic acid, 0.02-0.08 part of epichlorohydrin, 0.001-0.004 part of emulsifier, 0.001-0.004 part of initiator, 0.02-0.06 part of acrylic acid, 0.01-0.4 part of styrene and 0.05-1 part of oxidized starch; the processing technology of the high-strength wear-resistant bobbin base paper comprises the following specific preparation steps:
step one: preparing an ionic liquid, namely weighing ethanol, N-methylimidazole and 1-chlorobutane, putting the ethanol, the N-methylimidazole and the 1-chlorobutane into a reactor, uniformly stirring, heating to 70-80 ℃, introducing nitrogen, reacting for 22-24 hours to obtain a light colorless transparent layered liquid, cooling to-18-23 ℃, standing for 10-12 hours, separating out an upper liquid, drying a mixture in the reactor to obtain the ionic liquid, adding the ionic liquid and crushed waste paper into a processing pool, heating to 100-110 ℃ after uniform mixing, stirring for 1-1.5 hours, adding distilled water, stopping the reaction of the ionic liquid and the dried crushed waste paper, recovering the ionic liquid, and fully washing away the ionic liquid on the surface of the crushed waste paper;
step two: preparing polyamide polyamine epichlorohydrin, weighing diethylenetriamine, distilled water and distilled water, adding into a stirrer with a condenser pipe, stirring uniformly, adding adipic acid, heating the solution to enable moisture to slip out at about 130-140 ℃, continuing heating after moisture slips out, preserving heat for 2.5-3h, cooling to 160-140 ℃, adding a certain amount of distilled water at 90-100 ℃, cooling to 20-24 ℃ to obtain polyamide polyamine, slowly dripping epichlorohydrin while stirring for 14-17min, weighing distilled water, adding, preserving heat at 150-170 ℃ for 6-12h, enabling the jelly, adjusting the pH of the added hydrochloric acid to be acidic, and stopping the reaction to obtain the polyamide polyamine epichlorohydrin;
step three: preparing a modified polyamide polyamine reinforcing agent, namely weighing polyamide polyamine epichlorohydrin and distilled water, adding the mixture into a reaction kettle, stirring, adjusting the pH value of the solution, heating to 60-70 ℃, introducing nitrogen, adding an emulsifying agent, stirring for 30-40min, weighing an initiator and acrylic acid, adding the initiator and acrylic acid into the reaction kettle, stirring for 30-40min, dropwise adding styrene, reducing the stirring speed after dropwise adding, preserving heat for 4h to obtain the modified polyamide polyamine reinforcing agent, adding the waste paper and distilled water after washing in the step one into a beater, beating to obtain refined pulp, weighing the modified polyamide polyamine reinforcing agent, adding the refined pulp, and stirring for 5-10min;
step four: and (3) manufacturing paper by using a sheet machine, extruding pulp water, pressing, forming, drying by steam to obtain a semi-finished bobbin base paper, weighing oxidized starch and distilled water, uniformly stirring, heating to 60-95 ℃ for heat preservation, stopping heating after heat preservation for 20-30min, cooling to 21-26 ℃ while stirring to obtain a starch glue solution, mixing the starch glue solution with the modified polyamide polyamine obtained in the step (III) to obtain a mixed glue solution, uniformly coating the mixed glue solution on the surface of the semi-finished bobbin base paper, finishing surface sizing, and airing to obtain the bobbin base paper.
2. The high strength abrasion resistant bobbin base paper according to claim 1, wherein: the material comprises the following raw materials in parts by weight: 0.01-0.07 part of ethanol, 0.005-0.06 part of N-methylimidazole, 0.01-0.08 part of 1-chlorobutane, 0.05-0.5 part of nitrogen, 40-70 parts of distilled water, 50-80 parts of crushed waste paper, 0.006-0.07 part of diethylenetriamine, 0.001-0.5 part of adipic acid, 0.01-0.1 part of epichlorohydrin, 0.001-0.006 part of emulsifying agent, 0.001-0.006 part of initiator, 0.01-0.1 part of acrylic acid, 0.008-0.7 part of styrene and 0.01-1.8 part of oxidized starch.
3. The high strength abrasion resistant bobbin base paper according to claim 1, wherein: the material comprises the following raw materials in parts by weight: 0.05-0.04 part of ethanol, 0.015-0.02 part of N-methylimidazole, 0.016-0.05 part of 1-chlorobutane, 0.06-0.2 part of nitrogen, 52-59 parts of distilled water, 62-69 parts of crushed waste paper, 0.02-0.03 part of diethylenetriamine, 0.006-0.2 part of adipic acid, 0.03-0.07 part of epichlorohydrin, 0.002-0.003 part of emulsifier, 0.002-0.003 part of initiator, 0.03-0.05 part of acrylic acid, 0.02-0.3 part of styrene and 0.06-0.5 part of oxidized starch.
4. The high strength abrasion resistant bobbin base paper according to claim 1, wherein: the emulsifier is prepared by compounding OP-10 and Span-80 according to the ratio of 1:1.
5. The high strength abrasion resistant bobbin base paper according to claim 1, wherein: in the third step, naoH is added to adjust the pH value of the solution to 9.5-10.
6. The high strength abrasion resistant bobbin base paper according to claim 1, wherein: and step three, in the process of dropwise adding the styrene, the dropwise adding time is 25-40min.
7. The high strength abrasion resistant bobbin base paper according to claim 1, wherein: the beating degree of the refined pulp obtained in the step three is 40-45 DEG SR.
8. The high strength abrasion resistant bobbin base paper according to claim 1, wherein: and in the first step, the mixture in the reactor is dried under the condition of 70-75 ℃ vacuum environment for 22-24 hours.
9. The high strength abrasion resistant bobbin base paper according to claim 1, wherein: when distilled water is added in the first step, the ratio of the distilled water to the mixed solution is 2:1.
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